GPS

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The technological advances of the last decade have brought about hitherto unimagined changes in the way we go about our lives.

GPS

This section gives you the best Information on GPS ( Global
Positioning System). The Global Positioning System is satellites based and used
to find the exact location of GPS enabled object on earth. There are wide
variety of uses of GPS. In the public domain it is mostly used for the Asset
Tracking, Vehicle tracking, Child Tracking, Patient tracking and so on.

GPS is very powerful tool which is available 24*7*365 continuously, which can
be used by navigation system and tracking system. GPS System is highly accurate
and can used at accuracy of few meters.

Here are the articles and tutorials about Global Positioning System.

What is GPS?
The technological advances of the last decade have brought about hitherto
unimagined changes in the way we go about our lives.

Global Positioning System
The Global positioning System (GPS), formally known as the Navstar Global
Positioning System, was first time used by united states to enhance the
effectiveness of their allied military forces in 1973.

GPS CapabilityInitially GPS is used for only Defense
department of United States but later on it is being more mainstream,
now it is being used for general purpose too. GPS is a very powerful tools
which works 24*7*365 continuously. It's location tracing power is highly
accurate.

How GPS Works?
GPS or Global Positioning System is a technology for locating a person or an
object in three dimensional space anywhere on the Earth or in the
surrounding orbit. GPS is a very important invention of our time on account
of the many different possibilities it brings.

Benefits of GPS
GPS or Global Positioning System was originally developed as a military
navigation tool. However the technology has grown along with a sub set of
supporting technologies to serve other requirements within consumer budgets.

What is
Differential GPS?Differential GPS (DGPS) is a land-based technology
that works to improve the accuracy of GPS navigation. Differential GPS
improves the accuracy to within two meters of the actual position for moving
objects and even better for stationary situations. Differential GPS takes
GPS to a much higher level- it becomes a tool for positioning things on a
precise scale.

How Accurate
is GPS?The Global Positioning System (GPS) is a navigation
system based on satellites. The GPS network operates on 24 satellites
orbiting the earth. This system was initially developed by the US Department
of Defense for military purposes. However the system was extended in the
1980s for civilian use. GPS works in all weather conditions and all over the
world. GPS does not have any subscription fee of set up charges.

How GPS Measures Distances?
We learned that GPS identifies the position of an object using distance measurements from at least three satellites. Let us now examine how distance from the satellites is calculated.

Sources of GPS ErrorWe have seen that the entire system of GPS is dependent on a network of 24 satellites orbiting the earth. While research and development work is still going on to develop more and more accurate systems, it would be a good idea to understand what the external sources of error are.

Techniques to Improve GPS Accuracy
GPS is the best navigation and tracking technology developed so far, with accuracy levels of within 4-20 meters or so of the actual position of the object being tracked. However many of the areas this technology is being used for need much better accuracy levels. This includes sectors like aviation. Research is on for improving the accuracy levels. Here is an overview of some of the add-on technologies that improve the accuracy of GPS readings.

What is
Trilateration?
GPS receivers calculate the position of objects in two dimensional or three dimensional space using a mathematical process called trilaterlation. Trilateration can be either two dimensional or three dimensional. Let us examine how 2-D and 3-D trilateration work.

What is WAAS?
WAAS or Wide Area Augmentation System is a system of satellites and ground stations that work with GPS to improve the quality of signals and rectify errors. The quality of the signals can be up to five times better with WAAS. A GPS receiver with WAAS can give a position accuracy of within three meters. Further,
WAAS does not need additional equipment or service fees.

GPS Tracking
SystemsGlobal Positioning System usually called GPS is the
satellite navigation system that functions with the help of 27 Earth
orbiting GPS satellites. Out of these 27, now 24 are offering services and
3 extras in case one fails. These satellites receive and transmit any
radio signals for the GPS receiver on the earth. This provides accurate
geographical location of the receiver with longitude, latitude and
altitude.

Automatic Vehicle
Location (AVL)Automatic Vehicle Location (AVL) is an advanced method used to
track and monitor any remote vehicle equipped with a software unit that
receives and transfers signals through GPS satellite. AVL is a combination
of Global Positioning System (GPS) and Geographic Information System (GIS)
that provides actual geographic real time position of each vehicle.

Fleet Tracking
SystemGPS fleet tracking system offers effective fleet management and
tracking solutions. The fleet tracking software allows professionals to
monitor their fleet of vehicles at any point of time. This in turn helps
in better management by reducing operating cost and delivering mobile
assets more efficiently. The system also provides both dispatcher and
customers near real-time information on the location and status of service
and operators.

GPS Tracking
SoftwareToday almost all vehicle-tracking systems use GPS or a combination of
cellular and satellite transmitters to communicate the vehicle?s
position. The information is later shown on the electronic map by using
special tracking software via Internet. The GPS tracking software is not
only used for locating any vehicle but also determining the position of
vessels, wildlife, pet, satellite, marine tracking and also for mapping
and navigation. Here we will discuss about the general procedure and also
the types of tracking software.

What industries
are using GPS vehicle tracking software?The GPS vehicle tracking system not only helps in locating
your personal vehicle at any point of time but also used by various
industries including service, distribution, construction and
transportation for better management by supervising their service vehicle;
thereby increasing overall productivity of the respective industry.

General
benefits of a GPS vehicle tracking technologyAfter mobile phones may be GPS is one of the most
revolutionized technologies in 20 th and 21 st century. Whether you are an
individual worried by the safety of your and your personal belongings or a
businessman need to manage your business as far as vehicles are concerned,
GPS tracking technology is the best option. GPS is increasingly becoming an
essential part our day-to-day life as a tracking device whether a living
body or any valuable object like vehicle or any other.

GPS Asset Tracking
GPS asset tracking service is applicable for both personal and business
purposes to track assets that are remotely located or areas that are not
come under any wireless network. This includes tracking trucks, containers,
machinery thereby improving safety and efficiency. Tracking system is now an
essential part in transportation, forestry, maritime and industries like
mining, oil, gas and several others.

GPS in Cargo TrackingCargo Service is one the growing industry in worldwide today and GPS
tracking system plays a major role. GPS tracking system are now widely used
in all most all means of commercial transport including ship, plane, train,
van, truck or other cargo container. So GPS is used by people for navigation
in vehicles of all types all over world. As far as Cargo industry is
concerned today all most all types of automobiles are equipped with GPS
receivers and proofs to be beneficial in many ways.

GPS Tracking Map
The Global Positioning System (GPS) and Geographical Information System
(GIS) works simultaneously for many purposes like vehicle tracking, locating
any object, tracking, navigating, mapping and timing. So mostly this
technology is widely used for determining the position of an object and
measuring distance. However, the whole technology is based on maps. Maps
taken by satellites and then the application of GIS technology make the
whole process successful.

Real Time
& Passive Vehicle Tracking SystemGPS tracking systems are generally of two categories and are
categorized according to their functions. One is real time vehicle tracking
system and other is passive vehicle tracking system. The former one is
little more costly than the later with some additional technological
features that provide instant data transformation. But both are useful in
providing accurate location reports. The difference is only the message
delivery time but as far as other features are concerned both can provide
software and mapping solution to make different devices for several
application.

How GPS Can Be Used
Using the common cellular phone network, GPS is now widely used in tracking the location of all kinds of vehicle. The automatic vehicle
tracking system is a combination of GPS and Geographical Information System (GIS) that enables users both at personal as well as corporate level in tracking vehicle. The tracking devices attached in motor vehicle automatically update about location, speed, distance etc. Hence, time-by-time notification helps in fixing schedules thereby offering better fleet management.

Factors responsible for GPS signal errors
The GPS receiver requires the current time, the orbital position of the
satellite and a measurement of signal delay. Calculating accurate
co-ordinates of an object primarily depends on three data. To measure the
signal delay, the receiver prepares an identical sequence of the
Coarse-acquisition (C/A) code and compares it with the sequence received
from the satellite. The changes in bit transition can be calculated an
approx. of 10 nanoseconds for the code. As the signal travels at a speed
equal to the light, the net error can be taken as 3 meters.

GPS in Geocaching Games
Geocaching is an outdoor treasure haunting game that requires GPS receivers
in order to find out a cache. Geocachers search an undercover treasure by
using the co-ordinates of the cache through Internet and then go for finding
out the hideout place of the cache.

Basics of Global
Positioning SystemThe Global Positioning System is originally a part of Navigation
System with Timing and Range (NAVSTAR) was developed by US Department of
Defense. The concept of GPS first developed in the late 1960?s but the
first satellite was lunched in the year 1978 and the last one in the series
of 24 earth orbiting satellite was placed into orbit in June of 1993. Its
main purpose was only for military purpose including 24 hours navigation
capabilities for navy and air forces. Since then it has become an important
part in various civilian application, industries, and for recreational
activities.

Purchasing the right GPS unit
Yes, now you can find the use of Global Positioning System in various ways
including in your car, your watch, mobile phone, fleet, boat and various
others. The primary aim is to find our exact location or calculate the
location of an object and hence GPS becomes one of the prerequisite objects
in our day-to-day life. Earlier though it was bit expensive but now it is
affordable for average person and various technologies of GPS are available
in the market. So, it becomes essential for everyone to choose the right one
according to his/her needs. Lets look at some vital things that one should
consider before buying a GPS unit.

GPS in Health Improvement &
Physical Training
The quality of health is now one of the most concerned topics in all over
the world that advocates physical training. Today, there are numerous
technologies available in the market as far as physical training is
concerned. GPS heart rating monitor and GPS enable running watch is playing
an important role in making a daily schedule of exercise. These are
primarily useful for those who are desperate to come out from any serious
disease or surgery.

GPS in Air navigationGlobal Positioning System or GPS is now the
principal navigation system that provides location of any object on the
earth with accuracy. It is also used in shipping, automobile and other
industries for navigational purposes. As far as the aviation industry is
concerned GPS is used for both visual navigation and normal object guidance
when it becomes impossible for pilot to locate the destinations? position
due to bad weather or at night. Anyhow GPS assists the pilot in landing
airplanes at the exact location, as it requires maximum accuracy.

How
GPS is Different from ADF & VOR in Air NavigationThe principal aim of air navigation is for successfully piloting
the airplane without getting lost, breaking aircraft laws or endangering the
safety of the passenger. We know it?s really impossible to determine the
position of an aircraft at such a high speed and depends on their amount of
fuel for their safety. So it's important for the pilot to know the exact
location of the aircraft time by time. Aircrafts are generally navigated
under the Visual Flight Rules (VFR) and the Instrument Flight Rules (IFR).
In case of IFR, the pilots are permitted to navigate with the help of
instruments and other radio navigation devices. Where as in case of VFR
pilot moves forward by using direction, speed, time and distance of travel
along with visual observation.

GPS
services in mobile phones
For nearly a decade ago technology visionaries were talking about a
technology that people can use in their cell phones to get direction, track
their friends, keep an eye on any special object, kids tracking or simply
find the nearest hotel or hospital. Now finally those kinds of services are
finally starting with the help of Global Positioning System (GPS) that makes
our life simpler and smother.

Role
of maps and compass after GPSMaps and compass are two of the most essential equipments for
navigation. As far as finding yourself in from a particular point to another
or determining your exact location in a unfamiliar territory is concerned,
instead of the conventional maps and compass, the Global Positioning System
(GPS) is now playing a vital role. However, GPS alone can?t complete the
process of navigation and works with the help of these two equipments.

GPS
TerminologyHere are some of the most common words that you will come
across while reading any article in any website related to GPS. These will
provide you basic idea of its functions and how GPS deals with these things.

GPS
and it?s CompetitorsGlobal Positioning System or GPS is developed
and now completely operated by the United State?s Department of Defense.
US possess the exclusive right to shut down or restrict its use at any point
of time. From the development of this technology, its been widely used in
all over the world for various purpose and now one of the most popular
technology of this twenty first century. Though global positioning system is
free for civilian use but for commercial purpose one has to pay a
considerable amount according to its use.

GPS Smart
Shoes
GPS tracking shoes these days became a trend because of their valuable and
diverse services. There are several companies involve in manufacturing
different models of GPS tracking shoes.

Growing
Consumer Interest in GPS Product: Market Research
In our busy life schedule, it becomes important to keep everything in time
in order to ourselves with the pace of the time. But that again deals with
retain of timely information and this is where the Global Positioning System
comes into effect. People of various developed and also in developing
countries are more or less relying on GPS devices for various purposes.

New
satellites to compete with GPS
As Global Positioning System (GPS) is solely owned by United State?s
Department of Defense (DoD), other European Union countries and Russia
trying to establish their own satellite navigation systems. The new location
based service would be more precise and profitable compared to GPS.

CELL PHONE TRACKING BY GPS
People around the world mostly use GPS for tracking their cell phones. GPS works on radio signals sent by satellites. Cell phone tracking means knowing the current location of the mobile phone.

GPS for Fleet Vehicles
Global Positioning System uses satellites to determine the position, the position can be of an individual, a fleet, a vehicle or of a device.

Overview of Fleet Tracking Systems
Fleet tracking systems is the process of tracking and monitoring the movement of fleets. GPS (Global Positioning System) is the contemporary method used for tracking the fleets. Fleet tracking by GPS helps an owner to keep an eye on the fleet and it's location.

How Fleet Tracking Systems Works
Fleet vehicle tracking systems are designed to track the daily activity and motion of fleet vehicles. Most of the tracking systems installed in the fleet today are using A-GPS (Assisted Global Positioning System) and GLONASS (Global Navigation Satellite System) technologies.

What is Dog GPS Tracking
GPS is the abbreviation of the term Global Positioning System, a technology to keep track of the location of any object through satellite map. In relation to develop our understanding on Dog GPS Tracking we must first take a glimpse at how GPS or Global Positioning System works and how this system helps to track any object as and when required through the use of GPS device.

rajesh nayak
December 1, 2011
use of dgps technology in india
we are using gps based technology in our product, to minimise the location error, whether we can use Differential GPS technology? If yes what is cost and prerequisit for the same...
Rajesh